Locking concrete insert



FIG. 1 is a perspective view of a first embodiment of a locking concreteinsert and illustrates a paired threaded gear nut and locking platetherefor in phantom;

FIG. 2 is a front view of the locking concrete insert of FIG. 1;

FIG. 3 is a left side view of the locking concrete insert, the rightside view being a mirror image thereof;

FIG. 4 is a rear view of the locking concrete insert;

FIG. 5 is a top view of the locking concrete insert, the bottom viewbeing an inverted image thereof;

FIG. 6 is a perspective view of a second embodiment of a lockingconcrete insert;

FIG. 7 is a front view of the second embodiment;

FIG. 8 is a left side view of the second embodiment, the right side viewbeing a mirror image thereof;

FIG. 9 is a rear view of the second embodiment; and,

FIG. 10 is a top view of the second embodiment, the bottom view being aninverted image thereof.

The broken lines in the drawings represent the environmental subjectmatters and form no part of the claimed design.

CLAIM The ornamental design for a locking concrete insert, as shown anddescribed.